Ments



Fgb. 24, 1925.

G. C. DEBAY K BUILDlNG BLOCK MOLDING CHINE Ofiginal Filed Dec. 8.. 1919 2' Sheets-Shut 1 INVENTOR Feb. 24. 1925.

G. C. DEBAY BUILDING BLOCK HOLDING IACHIN! nal Filed D s. 1919 2 Sheets-Shoot 2 m. U m. r NN a L 9 WY 3 b N .2 m m, -N. Y

INVENTOR Reissuecl Feb. 24, 1925. Re.

UNITED STATES PATENT OFFICE.

GEORGE G. DEBAY, OF SPRINGDALE, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE KELBAY CORPORATION OF AMERICA, A CORPORATION OF DELA- WARE.

BUILDINGrBLOCK-MOLDING MACHINE Original No. 1,362,928, dated December 21, 1920, Serial No. 343,182, filed December 8, 1919. Application for reissue filed July 5, 1922. Serial No. 573,046.

To all whom it may concern: portion 15. The inner ends of the sections Be it known that I, GEORGE C. DEBAY,' 16 and 17 are beveled to form a bevel-joint a citizen of the United States, and resident 21. 55

of Springdale, in the county of Allegheny The side portion and the swinging-sec- 5 and State of Pennsylvania, have invented t1ons'16 and 17 are cut away to form in a new and useful Improvement in Buildingconjunction with each other the openings 22. Block-Molding Machines; and I do hereby Core-bars or members 23 are pivotally declare the following to be a full, clear, and mounted as at 24 in the standards 25 on exact description thereof. the pedestals 26, the number of said core- 10 My invention relates to a .machine for cars corresponding to the number of openforming building blocks, and more espe lugs 22 in the mold-members 13, the outer cially to blocks made of a plastic material ends of said core-bars being supported by with air spaces or openings formed therein.v said members, as indicated in Fig. l.

The object of my invention is to provide I-beams 27 are carried by the frames 4 15 a machine of this character in which the and 9, and'said I-beams form supports or blocks can be formed accurately, with great guides for the mold-members 13 as they are rapidity, and at greatly. reduced cost. brought up into position where the mold- To these ends my invention comprises the ing takes place, and as they pass therefrom novel features hereinafter set forth and with the molded blocks therein.

20 claim-ed. The chute 28 is provided to receive the In the accompanying drawings, Figure 1 plastic material from which the blocks are is a longitudinal section of my improved to be formed and the lower end of said chute machine; F ig. 2 is a plan view; Fig. 3 is communicates with the receptacle 29, the a cross section on the line 3-3, F ig. 1; Fig. side-walls 30 of which extend-down, to form 4 is a cross section on the line 4-4, Fig. l; the endwall s of the mold, the sides of which Fig. 5 is a perspective view of the traveling are made up of the mold-members 13, as mold plate; and Fig. 6 shows a modified clearly shown in Fig. 4. form of my invention. The receptacle 29 is preferably divided In the drawings, the numeral 2 is a shaft into two compartments 31 and 32 divided by 30 mounted in suitable bearings 3 in the frame the partition 33. Located in each compart- 4, said shaft having a worm-Wheel 5 keyed ment 31 and 32 are the spiral conveyers 34, thereto driven by the worm 6. shafts of said conveyers being journaled at A shaft 7 is mounted in suitable bearings their ends in the bearing-block 35 and the 8 in the frame 9, said shaft being in line' lower ends journaled in the spider-plate 36. 35 with the shaft 2. I At the upper ends of the conveyer shafts are An endless conveyor or chain 10 is the bevel-pinions 37 engaged by the bevelmounted on the sprocket wheels 11 and 12, pinions 38 on the horizontal shaft 39 which mounted on the shafts 2 and 7, respectively. may be driven by any suitable power.

Secured to the endless chain 10 are the mold- In this manner the plastic material conmembers 13 which form the bottom 14 and tained within the receptacle 29 is conveyed one of the sides 15 of the mold. The molddown and delivered into the molds as the members are so mounted on the endless mold-members come around into position to chain 10 as to have the necessary flexibility form with the side-walls 30 of the receptacle in passing around the wheels 11 and 12, as 29 the molds for the blocks.

indicated in-Fig. 1. In front of the receptacle 29 is the com- The side-plate 15 of the mold-member 13 pressor-block 40 which has a reciprocating has the upper portion made in two sections motion imparted to it by the pitman-rod 16 and 17, hinged as at 18 so as to be free to 41 connected up to the crank-arm 42 on the swing vertically. Grooves 19 are formed in shaft 43 which may be driven by any suitthe bottom edges of the swinging sections 16 able power.

and 17 said grooves engaging the rabbet The compressor-block 40 moves up and 20 formedon the upper edge of the sidedown in the guides formed by one of the Q9, and .is forced ously to receive the material.

walls or receptacles 29 and the guide-member 44:. In this manner pressure may be supplied by the compressor block 40 to, the block being formed where necessary. .Guidebars 45 are in the path of movement of the swingingsectionslfi andlT of. the mold members and engaging the ends of said sections will move the same over to engage the core-bars as will more fully hereinafter appear.

In .operation 5 the I which the blocks are to be formed is delivered from the hopper 28 into the receptacle downwardly by the spiral .conveyers 34. and delivered into the molds as they come around into position continu- The material will be forced with considerable pressure .by-the spiral conveyersBL into the molds,

but if-it is found desirable to add additional pressure, to operate as each mold comes into position .beneath the. same and in this way the block is further compressed.

Each mold ismadeup of the side-plate of the precedingmold-mcmber and'the bottom -and-sicle of the% following mold-member, to- .gether with the sidesz30 of'the receptacle 29.

Thebloeks as they are formed pass along.

continuously and as they approach the outer end of the conveyor they are removed in any suitable manner, and the mold-members ,continue around and when they .get beyond the, frontwheels 11 of the conveyor on the returngthe swing. sections 16 and 17 will swing outwardly as indicated in Fig. 1,. and will remain in this position until they come into engagement with the bars 45 which en gage the endsofsaidswinging sections and throw them up into position where they will dropdown onto the plate 15 toencirele the core-bars 23,;as clearly indicated in Figs. 3 i

and; 4 of the drawings.

In thismanner, I, am enabled to employ stationary core-bars as the swinging sections .permit themold-members to clear the 'core- .1

,bars, as clearly indicated in FigQ, andv after the core-bars are passed the barssifi throw the. swinging sections over in.position to inclose said core-bars in conJunction with the plates 15.

By my improved apparatus, I am enabled .to form the blocks continuously, one mold being brought up into positionas another passesbeyond the receptacle 29 whereby the blocks are formed in succession with great rapidity, and the old and laborious method Of pressing blocks one ata time-in a press .is;done awaywith.

In Fig. 6 I have shown a modified form of my invention in which the wheels 3 have the flat faces 3 with intervening grooves 3 so that the bottom pieces of the mold niemhers will engage said faces and the hinge COIinBCtlOIlS 8 w ll enter said grooves3 plastic -material from the compressor-block 10 is so timed members carried thereby,

What I claim is: 1. In apparatus for molding blocks, the

combinationofan endless conveyor, mold- ;a n openingior ned in said side whereby said sections may be moved into position over said core-bar to inclosev same.

Iniapparatus for forming blocks, the combination of an endless coiiveyer, moldmembers carried .thereby, each member forming the -bottom and one. side. of-the mold, the upper portion of thesideofsaid mold-member .being iormed of swinging sections, and astationarycore-bar adapted .to engage an-opening formed in said. side whereby said sections may be swung into position over said core-bar to vinclose same.

3. In apparatus fori forming. blocks, the combination with an endless conveyer, mold members carried thereby, .each member forming the bottom and one side of the mold, the upper portion ofthe sideof said mold membera being formed. of swinging sections, a. stationary. core-bar adapted to engage an opening formed in. said side, and means tor swingingsaid sections over said core-bar to inc-lose same.

14,111 apparatus for -m'olding blocks, the combination of an endless conveyer, moldinembers .-carried thereby, veach member forming the bottom and .one side, of the mold, the upper portion of theside of said mold-member being aformed. of swinging sections, a stationary core-bar engaging an opening formed :in said side, andguide-liars in the path of said movable, sections whereby said movable sections. are moved into position over said core-bar to inclose same.

5. In apparatus for forming molding blocks, the combination of an endlessconveyer, mold-,members carried thereby :each member {forming the bottom and-one side of the molchithe upper portion .ofthe-.side

mold-member being formed of swinging sections, said sections engaging said side ,with a tongue and groove oint, and a stationary core-bar adapted to engage an opening'formed in .said'side, whereby said sec-- tions may be -moved-in=position oversaid core bar to inclose same.

6. In." apparatus for .molding blocks, the combination of anendless conveyor, moldeach 'member forming the bottom and, one side of the mold, the upper portion of :the side of said mold-member being formed of movable sec- 'ItlODS, a stationary 'core-barengaging an opening formed in said side whereby said sections: may be moved into position over said core bars-t0, iiiclose.same, and meansufor ,ieeding the material to the mold.

7. In apparatus for molding blocks, the combination of an endless conveyer, moldmembers carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said mold-member being formed of movable sections, a stationary core-bar engaging an opening formed in said side whereby said sections may be moved into position over said core-bar to inclose same, a receptacle for containing the material to form the blocks, and feeding mechanism in said receptacle for delivering material to the mold.

8. In apparatus for molding blocks, the combination of an endless conveyer, moldmembers carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said mold-member being formed of movable sections, a stationary core-bar engaging an opening formed in said side whereby said sections may be moved into position over said core-bar to inclose same, a receptacle for containing the material to form the blocks, and a spiral conveyer in said receptacle for delivering material to the mold.

9. In apparatus for forming blocks, the combination of an endless conveyer, moldmembers carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said moldmember being formed of movable sections, a stationary core-bar enga ing an opening formed in said side where y said sections may be moved into position over said core-bar to inclose same, a receptacle for the material for forming the block, the walls of said receptacle forming with said mold-members the mold cavit 10. In apparatus for forming molding blocks, the combination of an endless con veyer, mold-members carried thereby, each member forming the bottom and one side of the mold, the upper portion of the side of said mold-member being formed of movable sect-ions, a stationary core-bar adapted to engage openings formed in said side whereby said sections may be moved into position over said core-bar to inclose same, means for delivering material to the molds, and a compressor for compressing material in said molds.

11. In apparatus for molding blocks, the combination of an endless conveyer, moldmembers carried thereby, the upper portion of the side of a mold member formed of movable sections, and a stationary core-bar adapted to engage an opening formed in said side whereby said sections may be moved into position over said core-bar to inclose same.

12. In apparatus for molding blocks, the combination of endless conveying m'echa nism, a stationary core-bar, and mold side members carried by said conveying mechanism composed of separable sections having coinciding openings formed therein adapted to receive said stationary core-bar.

13. A machine for forming cored blocks of plastic material, comprising an endless conveyor having one through a rectilinear path, open-top molds carried by said conveyor and having openings in their front and rear walls, and a rectilinear core bar passing through said openings and having one of its ends supported adjacent to the beginning of said flight, the point of support being in substantial alignment with the longitudinal center lines of said'molds when traveling in said path.

GEORGE C. DEBAY.

flight thereof movable 

